WO2001083435A1 - Composition a base de polysulfures presentant un seuil olfactif reduit - Google Patents

Composition a base de polysulfures presentant un seuil olfactif reduit Download PDF

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Publication number
WO2001083435A1
WO2001083435A1 PCT/US2001/013926 US0113926W WO0183435A1 WO 2001083435 A1 WO2001083435 A1 WO 2001083435A1 US 0113926 W US0113926 W US 0113926W WO 0183435 A1 WO0183435 A1 WO 0183435A1
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WO
WIPO (PCT)
Prior art keywords
polysulfide
polysulfides
hydrocarbyl
inhibitor
odor level
Prior art date
Application number
PCT/US2001/013926
Other languages
English (en)
Inventor
David R. Forester
Roger L. Sowerby
Bharat B. Malik
Victor A. Gober
Original Assignee
The Lubrizol Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by The Lubrizol Corporation filed Critical The Lubrizol Corporation
Priority to EP01930954A priority Critical patent/EP1278724B1/fr
Priority to DE60107945T priority patent/DE60107945T2/de
Priority to JP2001580864A priority patent/JP4841099B2/ja
Priority to CA002409654A priority patent/CA2409654A1/fr
Priority to AU2001257441A priority patent/AU2001257441B2/en
Priority to AU5744101A priority patent/AU5744101A/xx
Priority to AT01930954T priority patent/ATE285399T1/de
Publication of WO2001083435A1 publication Critical patent/WO2001083435A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C319/00—Preparation of thiols, sulfides, hydropolysulfides or polysulfides
    • C07C319/26—Separation; Purification; Stabilisation; Use of additives

Definitions

  • the present invention involves a composition containing polysulfides and inhibitors that has a reduced odor level, and a method to reduce the odor level of polysulfides.
  • These polysulfide compositions with a reduced odor level are more useful in various commercial applications such as metalworking fluids.
  • Polysulfides have been found to provide many useful functions in various areas of commerce.
  • Polysulfides can function as antiwear agents, extreme-pressure agents and antioxidants in lubricants such as gear oils and metalworking fluids. Polysulfides can also function as presulfiding agents for hydrotreating and hydrocracking catalysts used in refinery operations.
  • Polysulfides can also find use as vulcanization agents in the production of elastomers and as metal passivation agents for use in high-temperature furnace operations.
  • Japanese Patent Application 8,245,562, published on September 24, 1996 discloses the use of methyl acrylate as a H 2 S scavenger for the production of an alkyl isothiocyanate from an alkyl dithiocarbamate precursor by treating the carbamate precursor with the acrylate.
  • U.S. Patent 5,008,432 issued on April 16, 1991, deals with the production of mercaptan-containing compounds by reacting a compound having an activated, olefinic double bond such as methyl acrylate with H 2 S in the presence of a catalyst.
  • U.S. Patent 4,340,707 issued July 20, 1982, involves oligomers as intermediates to UV-hardenable binders or coatings that are prepared by reacting H 2 S or polyfunctional mercaptans with polyfunctional acrylates.
  • the polysulfide compositions of the present invention generally include a non-nitrogen-containing inhibitor that can be advantageous for use as presulfiding agents of refinery catalysts and as metal passivation agents in high-temperature furnace operations.
  • the present invention provides a method for reducing the odor level of a polysulfide composition.
  • the present invention is also directed to a composition having a reduced odor level comprising a polysulfide and an inhibitor selected from the group consisting of hydrocarbyl acrylates and hydrocarbyl methacrylates.
  • the polysulfide of the composition having a reduced odor level is the reaction product of an olefin selected from the group consisting of isobutylene and diisobutylene with sulfur and H 2 S in the presence of a catalyst.
  • a method for reducing the odor level of a polysulfide comprises contacting the polysulfide with an inhibitor selected from the group consisting of hydrocarbyl acrylates and hydrocarbyl methacrylates under conditions that reduce the odor.
  • the polysulfide in the method for reducing the odor level is the reaction product of an olefin selected from the group consisting of isobutylene and diisobutylene with sulfur and H 2 S in the presence of a catalyst.
  • the composition of the present invention comprises as a first component a polysulfide.
  • the polysulfides of the present invention are sulfur-containing organic compositions that contain one or more sulfur linkages that can be represented by the formula — S x — where S is sulfur and x is a number greater than one. These sulfur-containing organic compositions can be acyclic or cyclic.
  • the organic portion of these compositions has a hydrocarbyl makeup; that is, it is predominately hydrocarbon in nature but may have nonhydrocarbon substituent groups and may contain heteroatoms in addition to sulfur.
  • the polysulfides of the present invention are generally obtained by sulfurizing starting materials using a sulfur source.
  • the starting materials are organic compositions containing one or more olefinic double bonds; that is, double bonds connecting two aliphatic carbon atoms.
  • organic compositions containing one or more olefinic double bonds are acyclic and cyclic olefins, acyclic polyenes such as 1,4-butadiene and isoprene, cyclic polyenes, unsaturated carboxylic acids and esters, unsaturated fats and oils from plants and animals, and mixtures thereof.
  • Preferred starting materials for the polysulfides of the present invention are isobutylene, diisobutylene and C 8 and higher alpha-olefins and their corresponding structural and geometric isomers including the octenes, the nonenes, the hexadecenes, the octadecenes, the tetracosenes, and the heptacosenes.
  • the sulfur source can be sulfur, sulfur halides such as SC1 2 or S 2 C1 2 , H 2 S, polysulfide salts, and mixtures thereof.
  • a preferred sulfur source for polysulfides of the present invention is a mixture of sulfur and H 2 S.
  • the polysulfides of the present invention can be prepared by contacting the starting materials with the sulfur source under conditions that result in the formation of polysulfides.
  • a preferred preparation method for the polysulfides of the present invention involves reacting isobutylene or diisobutylene with sulfur and H 2 S in the presence a catalyst.
  • a preferred catalyst is n-butylamine.
  • the polysulfides of the present invention can also be prepared by reacting a mercaptan with sulfur in the presence of a basic catalyst as presented in U.S. Patent No. 5,530,163, the disclosure of which is incorporated herein by reference.
  • composition of the present invention comprises, as a second component, an inhibitor selected from the group consisting of hydrocarbyl acrylates and hydrocarbyl methacrylates.
  • the hydrocarbyl group is predominately hydrocarbon in nature but may have nonhydrocarbon substituent groups and may contain heteroatoms such as oxygen.
  • Preferred nonhydrocarbon substituent groups are cyclic ether groups such as epoxy groups represented by the formula
  • the hydrocarbyl group is preferably a C 2 to C 20 hydrocarbyl group or mixtures thereof.
  • the inhibitors can be monoacrylates, monomethacrylates, polyacrylates or polymethacrylates. Examples of inhibitors of the present invention are 2-ethylhexyl acrylate, 2,6-dimethylheptyl methacrylate, isodecyl methacrylate, n-dodecyl acrylate, C 12 .
  • the method of the present invention for reducing the odor level of a polysulfide comprises contacting the polysulfide with an inhibitor selected from the group consisting of hydrocarbyl acrylates and hydrocarbyl methacrylates under conditions that reduce the odor level.
  • the hydrocarbyl group of the inhibitor is a C 2 to C 20 hydrocarbyl group or mixtures thereof such as n-dodecyl acrylate or glycidyl methacrylate.
  • the polysulfide is the reaction product of an olefin selected from isobutylene and diisobutylene with sulfur and H 2 S using a catalyst.
  • the conditions in the method of the present invention for reducing the odor level of a polysulfide involve contacting or mixing the polysulfide with an inhibitor where preferred conditions are a polysulfide-to-inhibitor weight ratio of 90:10 to 99.9:0.1, a period of 5 minutes to 2 hours, and a temperature of 10 to 80°C. More preferred conditions are a polysulfide-to- inhibitor weight ratio of 95:5 to 99.9:0.1, a period of 0.25 to 1.5 hours, and a temperature of 15 to 75°C. Most preferred conditions are a polysulfide-to-inhibitor weight ratio of 98:2 to 99.9:0.1, a period of 0.5 to 1 hour, and a temperature of 20 to 70°C.
  • preferred conditions are a polysulfide-to-inhibitor weight ratio of 90:10 to 99.9:0.1, a period of 5 minutes to 2 hours, and a temperature of 10 to 80°C. More preferred conditions are a polysul
  • the method and composition of the present invention provide polysulfides having a reduced odor level. These polysulfides can be readily used in various applications including aqueous and nonaqueous metalworking fluids, automotive and industrial gear oils, as presulfiding agents for catalysts used in refinery operations, and as metal passivation agents for use in high-temperature furnace operations.
  • aqueous and nonaqueous metalworking fluids automotive and industrial gear oils
  • presulfiding agents for catalysts used in refinery operations
  • metal passivation agents for use in high-temperature furnace operations.
  • a polysulfide containing 36.6% S by weight was prepared by reacting diisobutylene with sulfur and H 2 S using n-butylamine as a catalyst. A portion of this polysulfide was treated by mixing with n-dodecyl acrylate (available from Aldrich, Ciba Geigy, or Sartomer) in a weight ratio of polysulfide to acrylate of 99.5:0.5 for 0.5 hour at 66°C. After storage for 10 days at 60°C, the untreated polysulfide gave 14.5 ppm H 2 S while the treated polysulfide gave 6.9 ppm H 2 S as measured by a GC headspace analyzer using a sulfur-specific detector. A portion of the polysulfide treated in the same way with a nitrogen-containing inhibitor (available from Baker Petrolite as TOLAD 9220 ® ) gave 1.6 ppm H 2 S per GC analysis after storage for 10 days at 60°C.
  • a nitrogen-containing inhibitor available from
  • a polysulfide containing 38% S by weight was prepared by reacting diisobutylene with sulfur and H 2 S using n-butylamine as a catalyst. A portion of this polysulfide was treated with n-dodecyl acrylate in the same way as in Example 1. After storage for 10 days at 60°C, the untreated polysulfide gave 51 ppm H 2 S while the treated polysulfide gave 4.7 ppm H 2 S per GC analysis.
  • Example 2 A polysulfide containing 54% S by weight was prepared by reacting isobutylene with sulfur and H 2 S using n-butylamine as a catalyst. Portions of this polysulfide were treated with glycidyl methacrylate (available from San Esters) or a nitrogen-containing inhibitor (available from Baker Petrolite as TOLAD SX-9200 ® ) by mixing in a weight ratio of polysulfide to inhibitor of 99.6:0.4 for about 1 hour at 20°C.
  • glycidyl methacrylate available from San Esters
  • a nitrogen-containing inhibitor available from Baker Petrolite as TOLAD SX-9200 ®
  • the untreated polysulfide After storage for 12 days at 60°C, the untreated polysulfide gave 38 ppm H 2 S, the methacrylate-treated polysulfide gave 0.5 ppm H 2 S, and the TOLAD SX-9200 ® -treated polysulfide gave ⁇ 0.1 ppm H 2 S per GC analysis.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Lubricants (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

La présente invention concerne une composition qui contient des polysulfures et présente un seuil olfactif réduit, et un procédé qui permet de réduire l'odeur des polysulfures. La composition de l'invention contient un polysulfure, et un inhibiteur qui réduit le seuil olfactif. Les polysulfures comprennent des oléfines sulfurées préparées par réaction de l'oléfine avec du soufre et H2S, en présence d'un catalyseur. Les inhibiteurs sont sélectionnés dans le groupe constitué par des acrylates d'hydrocarbyle et des méthacrylates d'hydrocarbyle. Le procédé de réduction du seuil olfactif des polysulfures consiste à placer les polysulfures au contact d'un inhibiteur sélectionné dans le groupe constitué par des acrylates d'hydrocarbyle et des méthacrylates d'hydrocarbyle, dans des conditions propres à réduire le seuil olfactif.
PCT/US2001/013926 2000-05-01 2001-04-30 Composition a base de polysulfures presentant un seuil olfactif reduit WO2001083435A1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP01930954A EP1278724B1 (fr) 2000-05-01 2001-04-30 Composition a base de polysulfures presentant un seuil olfactif reduit
DE60107945T DE60107945T2 (de) 2000-05-01 2001-04-30 Polysulfid-zusammensetzung mit verringertem geruch
JP2001580864A JP4841099B2 (ja) 2000-05-01 2001-04-30 減少した臭気レベルを有するポリスルフィドの組成物
CA002409654A CA2409654A1 (fr) 2000-05-01 2001-04-30 Composition a base de polysulfures presentant un seuil olfactif reduit
AU2001257441A AU2001257441B2 (en) 2000-05-01 2001-04-30 Composition of polysulfides having a reduced odor level
AU5744101A AU5744101A (en) 2000-05-01 2001-04-30 Composition of polysulfides having a reduced odor level
AT01930954T ATE285399T1 (de) 2000-05-01 2001-04-30 Polysulfid-zusammensetzung mit verringertem geruch

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/563,040 2000-05-01
US09/563,040 US6362374B1 (en) 2000-05-01 2000-05-01 Composition of and method for polysulfides having a reduced odor level

Publications (1)

Publication Number Publication Date
WO2001083435A1 true WO2001083435A1 (fr) 2001-11-08

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PCT/US2001/013926 WO2001083435A1 (fr) 2000-05-01 2001-04-30 Composition a base de polysulfures presentant un seuil olfactif reduit

Country Status (8)

Country Link
US (1) US6362374B1 (fr)
EP (1) EP1278724B1 (fr)
JP (1) JP4841099B2 (fr)
AT (1) ATE285399T1 (fr)
AU (2) AU2001257441B2 (fr)
CA (1) CA2409654A1 (fr)
DE (1) DE60107945T2 (fr)
WO (1) WO2001083435A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITRM20130245A1 (it) * 2013-04-24 2014-10-25 Chimec Spa Nuovi scavengers dell'acido solfidrico

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2781795B1 (fr) * 1998-07-31 2000-09-08 Atochem Elf Sa Compositions a base de dimethyldisulfure a odeur masquee
FR2910348B1 (fr) * 2006-12-22 2012-05-18 Arkema France Agent de sulfuration de catalyseur d'hydrotraitement et son utilisation pour la presulfuration in-situ et ex-situ
US20150147287A1 (en) * 2011-05-20 2015-05-28 International Flavors & Fragrances Inc. Low volatile reactive malodor counteractives and methods of use thereof
US20120294821A1 (en) * 2011-05-20 2012-11-22 International Flavors & Fragrances Inc. Low Volatile Reactive Malodor Counteractives and Methods of Use Thereof
US10226544B2 (en) 2015-06-05 2019-03-12 International Flavors & Fragrances Inc. Malodor counteracting compositions
CN110656003A (zh) * 2019-06-19 2020-01-07 南京麦稼酒业有限公司 一种原香型酒、制备工艺及其生产设备

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Publication number Priority date Publication date Assignee Title
US4119549A (en) * 1975-03-21 1978-10-10 The Lubrizol Corporation Sulfurized compositions
JPS56112254A (en) * 1980-02-12 1981-09-04 Nippon Oxygen Co Ltd Deodorizing method
JPS58140063A (ja) * 1982-02-13 1983-08-19 Nippon Soda Co Ltd ジアルキルポリスルフイド類の脱臭方法
EP0976726A1 (fr) * 1998-07-31 2000-02-02 Elf Atochem S.A. Composition à base de diméthyldisulfure à odeur masquée

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JPS56147763A (en) * 1980-04-15 1981-11-16 Toyo Kasei Kogyo Kk Preparation of mercaptopropionic ester and thiodipropionic ester
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US5152909A (en) * 1991-04-22 1992-10-06 Texaco Inc. Antioxidant/corrosion resistant additive for railway diesel crankcase lubricants
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JP3586308B2 (ja) 1995-03-09 2004-11-10 東洋化成工業株式会社 アルキルイソチオシアネ−トの製造法。
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Publication number Priority date Publication date Assignee Title
US4119549A (en) * 1975-03-21 1978-10-10 The Lubrizol Corporation Sulfurized compositions
JPS56112254A (en) * 1980-02-12 1981-09-04 Nippon Oxygen Co Ltd Deodorizing method
JPS58140063A (ja) * 1982-02-13 1983-08-19 Nippon Soda Co Ltd ジアルキルポリスルフイド類の脱臭方法
EP0976726A1 (fr) * 1998-07-31 2000-02-02 Elf Atochem S.A. Composition à base de diméthyldisulfure à odeur masquée

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DATABASE WPI Week 198339, Derwent World Patents Index; AN 1983-773692, XP002171055 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITRM20130245A1 (it) * 2013-04-24 2014-10-25 Chimec Spa Nuovi scavengers dell'acido solfidrico
WO2014174432A1 (fr) * 2013-04-24 2014-10-30 Chimec S.P.A. Nouveaux agents d'épuration de l'acide sulphidrique

Also Published As

Publication number Publication date
EP1278724A1 (fr) 2003-01-29
US6362374B1 (en) 2002-03-26
JP2003531887A (ja) 2003-10-28
ATE285399T1 (de) 2005-01-15
AU5744101A (en) 2001-11-12
EP1278724B1 (fr) 2004-12-22
JP4841099B2 (ja) 2011-12-21
DE60107945D1 (de) 2005-01-27
DE60107945T2 (de) 2005-12-15
AU2001257441B2 (en) 2005-05-26
CA2409654A1 (fr) 2001-11-08

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